Can someone please help. I have a Paramount series 30 and want to add a front suspension to it. I know it is a threaded type but what diameter and length do I need. It looks like 150mm from bottom of headset to top of nut. Any recommendations would be great. Also I would be interested in a good used setup if anyone wants to sell. Please email me at my work at email@example.com. Thanks for all repleis and emailed info.